Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
The main change is to only use the `category' text-property only when
available. For that many calls are changed to use c-get-char-property,
c-next-single-property-change, c-sc-scan-lists,
c-sc-parse-partial-sexp, c-unmark-<->-as-paren.
* lisp/progmodes/cc-align.el (c-lineup-respect-col-0): New function.
* lisp/progmodes/cc-cmds.el (c-forward-into-nomenclature)
(c-backward-into-nomenclature): Use cc-subword if subword-mode is
not available.
(c-beginning-of-defun, c-end-of-defun, c-mark-function)
(c-indent-line-or-region): Use c-region-is-active-p.
* lisp/progmodes/cc-defs.el (c-version): Bump up to 5.33.
(c-use-category): New const.
(c-next-single-property-change): New macro.
(c-region-is-active-p): Prefer region-active-p when available.
(c-search-backward-char-property): Fix old min/max typo; probably
a copy/paste error.
(c-mark-<-as-paren, c-mark->-as-paren, c-unmark-<->-as-paren):
Turn them into macros that obey c-use-category.
(c-sc-scan-lists-no-category+1+1, c-sc-scan-lists-no-category+1-1)
(c-sc-scan-lists-no-category-1+1, c-sc-scan-lists-no-category-1-1)
(c-sc-scan-lists, c-sc-parse-partial-sexp)
(c-looking-at-non-alphnumspace): New macros.
(c-sc-parse-partial-sexp-no-category): New function.
(c-emacs-features): Add `category-properties' element.
* lisp/progmodes/cc-engine.el (c-invalidate-state-cache, c-parse-state):
Handle the case where categories are not available.
(c-record-parse-state-state, c-replay-parse-state-state):
Handle marker values.
(c-before-change-check-<>-operators): Look for the `syntax-table'
property rather than for the corresponding `category'.
(c-looking-at-decl-block): Remove unused var
`c-disallow-comma-in-<>-arglists'.
(c-forward-<>-arglist-recur): Remove unused var
`orig-record-found-types'.
* lisp/progmodes/cc-langs.el (c-modified-constant): New lang var.
(c-known-type-key): Don't make a list just to throw it away.
* lisp/progmodes/cc-bytecomp.el (cc-bytecomp-unbound-variables)
(cc-bytecomp-original-functions, cc-bytecomp-original-properties)
(cc-bytecomp-loaded-files): Re-set each time the file is loaded.
(cc-bytecomp-obsolete-var, cc-bytecomp-ignore-obsolete)
(cc-bytecomp-obsolete-fun): Delete unused functions.
* lisp/progmodes/cc-mode.el (c-just-done-before-change): New var.
(c-basic-common-init): Initialize it.
(c-common-init): Only use mode-require-final-newline when available.
(c-before-change): Check and set c-just-done-before-change.
(c-after-change): Re-set c-just-done-before-change.
(c-advise-fl-for-region): New macro.
(lazy-lock-defer-rest-after-change, lazy-lock-defer-line-after-change)
(font-lock-after-change-function, jit-lock-after-change):
Advise if needed.
* lisp/progmodes/cc-mode.el (c-initialize-cc-mode): Don't quote a symbol
just to then pass it to `symbol-value'.
(prog-mode): Provide fallback definition, if needed.
* lisp/progmodes/cc-langs.el: Always load `cl'. Don't load `cl-lib'.
Remove "cl-" prefix accordingly.
* lisp/progmodes/cc-fonts.el (c-font-lock-invalid-string): Use integerp or
characterp depending on the type of characters.
(c-font-lock-enum-tail): Remove unused var `start'.
* lisp/progmodes/cc-engine.el: Load CL at compile-time.
(c-declare-lang-variables): Use mapcan.
(c-append-to-state-cache): Remove unused var `ce+1'.
(c-parse-state-state): Make buffer-local.
(c-ssb-lit-begin): Remove unused var `pps-end-pos'.
(c-just-after-func-arglist-p): Remove unused var `end'.
* lisp/progmodes/cc-defs.el: Load cc-fix if delete-dups is undefined.
(c-<-as-paren-syntax, c->-as-paren-syntax): Move definition earlier.
(c-make-keywords-re): Use delete-dups.
(c-get-current-file): Avoid file-name-base.
* lisp/progmodes/cc-cmds.el (c-electric-lt-gt): Remove unused var
`close-paren-inserted'.
* lisp/progmodes/cc-awk.el (c-forward-sws): Remove unused declaration.
* lisp/calc/calc-alg.el (math-beforep):
* lisp/progmodes/cc-guess.el (c-guess-view-reorder-offsets-alist-in-style):
Simplify because string-lessp can accept symbols as args.
progmodes/cc-langs.el (c-mode-menu): Added "Style..." submenu.
progmodes/cc-styles.el (cc-choose-style-for-mode): New function derived
from `c-basic-common-init'.
progmodes/cc-mode.el (top-level): Require cc-guess.
(c-basic-common-init): Use `cc-choose-style-for-mode'.
